TWM455471U - Physiological monitoring device - Google Patents

Description

Physiological monitor

This creation is about a physiological monitor, especially a piezoelectric sensing layer of a curved film to monitor physiological signals.

The heartbeat state and respiratory action of the organism can directly reflect the cardiopulmonary function, so it is quite an indicator. Therefore, the physiological information of the physiological pulse signal has been widely used as a preliminary diagnosis information. Generally, the limb movement of the living body is achieved by the stretching and contraction of the muscle, which causes the skin to be deformed, and the movement of the chest or the abdomen up and down during breathing also causes the skin to be regularly tight and soothing, so the pressure can be utilized. The electrical component converts the deformation of the skin into a corresponding physiological pulsation signal, thereby sensing the limb movement, heartbeat or breathing action of the birth object.

In the conventional technology, a sensing device including a piezoelectric element is generally used to sense physiological pulsation, mainly by using a piezoelectric element to deform itself according to the deformation of the body surface, thereby inducing a corresponding electrical signal. It is called a piezoelectric signal. However, the conventional technology has disadvantages in that the sensing sensitivity is not good and the wireless transmission function is not provided, resulting in great inconvenience in practical use. Therefore, there is a need for a physiological monitor that provides a simple, lightweight, easy to operate, and highly reliable structure to monitor physiological signals, thereby solving the problems of the prior art.

The main purpose of this creation is to provide a physiological monitor that can be attached to a biological surface to monitor physiological signals, and includes a piezoelectric sensing layer, a shielding layer, and a covering layer stacked in this order from bottom to top, wherein the piezoelectric inductor The measuring layer, the shielding layer and the covering layer are curved, and the piezoelectric sensing layer, the shielding layer and the curved layer of the covering layer are vertically aligned and closely stacked. The piezoelectric sensing layer is made of a piezoelectric material and can be sensed by contacting the biological surface. Due to the amount of deformation of physiological activity, a pressure sensing signal is generated and transmitted. The shielding layer is made of a metal material, a conductive plastic material or a conductive ceramic material to provide electrical and electromagnetic shielding effects. The cover layer is made of an electrically insulating material to cover and protect the piezoelectric sensing layer and the shielding layer.

In addition, the physiological monitor may further include a signal processing unit electrically connecting the piezoelectric sensing layer to receive and process the piezoelectric sensing signal, and generate and store physiological monitoring information for reading.

Therefore, the physiological monitor of the present invention can monitor the physiological function of the living body, has the advantages of simple structure, light weight, convenient operation and high reliability, and can provide functions for measuring respiratory pulsation and/or heartbeat pulsation and limb movement.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

Referring to the first figure, a schematic diagram of the creation physiological monitor. As shown in the first figure, the physiological monitor of the present invention comprises a piezoelectric sensing layer 10, a shielding layer 20 and a covering layer 30 which are sequentially stacked from bottom to top, and can be attached to a living body table to monitor physiological signals, such as Breathing pulsation and / or heartbeat pulsation, limb movement. The piezoelectric sensing layer 10 is a curved sheet, a wire or a cable, and the shielding layer 20 and the covering layer 30 are curved films, and the piezoelectric sensing layer 10, the shielding layer 20, and The curved shape of the cover layer 30 is closely aligned with each other and closely stacked. Since the curved shape can increase the corresponding deformation amount of the piezoelectric sensing layer 10 itself to the external deformation amount, the piezoelectricity of the piezoelectric inductance measuring layer 10 can be enhanced. Sensing signal.

The piezoelectric sensing layer 10 is composed of a piezoelectric material and may include an electromechanical film (EMFi), polyamides (polyamides), lead titanate (PbTiO ₃ ), quartz (quartz), cerium oxide. (SiO ₂ ), lithium niobate (LiNbO ₃ ), lithium tantalate (LiTaO ₃ ), barium titanate (BaTiO ₃ ), lead zirconate titanate (Pb(Zr, Ti)O ₃ , PZT), gallium arsenide ( GaAs), aluminum nitride (AlN), zinc oxide (ZnO), barium ferrite (BiFeO ₃ ), polyvinylidene fluoride (PVDF), polyethylene terephthalate (PET) , Polyethylene (PE), Polypropylene (PP), Polyvinyl Chloride (PVC), Polystyrene (PS), Polytetrafluoroethene (PTFE), Polymethacrylic acid Polymethyl methacrylate (PMMA) or Polydimethyl siloxane (PDMS). The piezoelectric sensing layer 10 can contact the biological surface to sense the amount of deformation due to physiological activity, such as shrinkage or stretching of the skin, thereby generating and transmitting a pressure sensing signal.

The shielding layer 20 is made of a metal material, a conductive plastic material or a conductive ceramic material to provide an electromagnetic shielding effect. The cover layer 30 is made of an electrically insulating material and may include polyamides, nylon, Acrylic, and acrylonitrile-butadiene-Styrene (ABS plastic). , Phenolic Resins, Epoxy, Polyester, Silicone, Polyurethane PU, Latex, Rubber, Glass, Food Grade Silicone, polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP, Polyproylene), polyvinyl chloride (PVC), polystyrene (Polystyrene, PS ), Polyvinylidene Fluoride (PVDF), Polytetrafluoroethene (PTFE), Polymethyl methacrylate (PMMA) or Polydimethyl siloxane (PDMS) . The cover layer 30 covers the piezoelectric sensing layer 10 and the shielding layer 20 and provides protection against environmental interference or moisture.

In addition, the piezoelectric sensing layer 10, the shielding layer 20, and the cover layer 30 of the present physiological monitor may be configured in the order shown in the first figure, and may be configured to be bottom-up. The order is the piezoelectric sensing layer 10, the cover layer 30, and the shielding layer 20, or the cover layer 30, the piezoelectric sensing layer 10, and the shielding layer 20.

It should be noted that in the following description, the configuration order of the piezoelectric sensing layer 10, the shielding layer 20, and the cover layer 30 is taken as an exemplary example, that is, the following description essentially also includes the piezoelectric sensing layer 10, The order of the cover layer 30 and the mask layer 20, as well as the order of the cover layer 30, the mask layer 20, and the piezoresistive layer 10.

As shown in the first figure, the physiological monitor may further include a signal processing unit 40 electrically connected to the piezoelectric sensing layer 10 for receiving and processing the piezoelectric inductance signal from the piezoelectric sensing layer 10 and generating physiological Monitoring information.

Specifically, the signal processing unit 40 may include an amplifying unit, a filtering unit, a signal converting unit, a control unit, a transceiver unit, a power supply unit, and a grounding unit, wherein the power supply unit supplies power to the amplifying unit, the filtering unit, the signal conversion unit, The control unit and the transceiver unit, the grounding unit filters out the noise blocked by the shielding layer, and the amplifying unit receives and amplifies the voltage sensing signal, and filters the noise through the filtering unit and analog-to-digital conversion of the signal conversion unit. The control unit generates a transmission signal, and the transceiver unit receives the transmission signal to generate physiological monitoring information in the form of a wired signal or a wireless signal, and transmits the information to at least one remote processing unit, through which the physiological pulse signal can be stored or calculated. The display shows physiological pulsation signals.

The signal processing unit 40 may also have a memory unit to store the sensing results and transmit the sensing results by wire or wirelessly. The signal processing unit 40 also has a function of receiving an instruction transmitted by the external control unit, and can perform a corresponding function according to the instruction, wherein the instruction includes at least a read instruction, and the signal processing unit 40 corresponds to the read instruction. The function is that the signal processing unit 40 transmits the sensing result information stored in the memory unit to the remote processing unit, and the remote processing unit can further perform signal processing and display the signal waveform.

Amplifying unit, filtering unit and signal conversion unit in the signal processing unit 40 The element, the control unit, the transceiver unit, and the memory unit are implemented by using separate circuit elements, or partially or entirely using an integrated circuit (IC).

The physiological monitor of the first figure may further include a connecting layer 60 and/or an upper cap layer 72 for improving the quality of the piezoelectric sensing signal. The connection layer 60 is attached and located under the piezoelectric sensing layer 10 or the cover layer 30 at the bottom of the piezoelectric sensing layer 10, the shielding layer 20 and the cover layer 30 for direct contact with the biological surface and is electrically insulated. The biological surface meter and the pressure sensing layer 10 or the cover layer 30 can avoid the influence of the wetness or moisture of the living body table on the quality of the pressure sensing signal. The upper cap layer 72 is attached and located on the overlying cap layer 30 or the shielding layer 20 of the piezoelectric sensing layer 10, the shielding layer 20 and the cover layer 30, and can additionally provide piezoelectricity when physiologically deformed. The deformation force of the sensing layer 10 enhances the ability to sense physiological actuation and, in addition, can be used to encapsulate the overall structure to protect internal components.

The upper cover layer 72 may be arranged in an entity or divided into a plurality of entities, or have a hole shape for accommodating the curved shape of the underlying cover layer 30 or the shielding layer 20.

In addition, the upper cover layer 72 of the present invention may also include a hard portion 74 composed of a hard material and a soft portion 76 as shown in the second figure, and the soft portion 76 is composed of a soft material and a soft portion. 76 is a curved shape corresponding to the underlying cover layer 30 or the shielding layer 20 such that the curved shape of the cover layer 30 or the shielding layer 20 is still freely deformable.

Therefore, in summary, the present physiological monitor is characterized in that it can be conveniently placed in clothes, belts, pants, diapers, women's underwear, etc., and attached to the body surface of the chest, abdomen or xiphoid. To sense breathing and/or heartbeat pulsation, or to place on the chest, abdomen, xiphoid, head, hand, back, foot, neck, shoulders or hips to sense limb motion signals for physiological monitoring The function. In addition, the conductive double-sided tape or the patch may be further attached to the body surface.

The above is only a preferred embodiment for explaining the present creation, and is not intended to Any limitation on the creation of this creation is that any modification or alteration of the creation made in the same creative spirit should still be included in the scope of protection of this creation.

10‧‧‧Inductance measurement layer

20‧‧‧shading layer

30‧‧‧ Coverage

40‧‧‧Signal Processing Unit

60‧‧‧Connection layer

72‧‧‧Upper cover

74‧‧‧ Hard Department

76‧‧‧Soft Department

The first figure shows a schematic diagram of the present physiological monitor.

The second figure shows a schematic diagram of another exemplary embodiment of the present physiological monitor.

10‧‧‧Inductance measurement layer

20‧‧‧shading layer

30‧‧‧ Coverage

40‧‧‧Signal Processing Unit

60‧‧‧Connection layer

72‧‧‧Upper cover

Claims (7)

A physiological monitor includes a piezoelectric sensing layer, a shielding layer, a covering layer, and a connecting layer or an upper cap layer, and the piezoelectric sensing layer, the shielding layer, and the covering layer are stacked from bottom to top. The order is the piezoelectric sensing layer, the shielding layer and the covering layer, or the piezoelectric sensing layer, the covering layer and the shielding layer, or the covering layer, the piezoelectric sensing layer and the shielding layer, wherein The piezoelectric sensing layer is a curved sheet, a wire or a cable, and the shielding layer and the covering layer are curved films, and the piezoelectric sensing layer, the shielding layer and The curved layer of the cover layer is closely aligned with each other and closely stacked. The piezoelectric sensing layer is used for sensing a deformation of a biological body due to a physiological activity, and the shielding layer is used for providing electromagnetic a shielding effect, the connecting layer is attached and located under the piezoelectric sensing layer, the shielding layer and the bottom of the covering layer or the covering layer for directly contacting the biological surface. And electrically insulating the biological body table and the pressure sensing layer or the covering layer, the upper cover layer is attached And located on the piezoelectric sensing layer, the shielding layer and the uppermost layer of the covering layer or the shielding layer for additionally providing a deformation force on the piezoelectric sensing layer. The physiological monitor according to claim 1, further comprising a signal processing unit electrically connecting the piezoelectric sensing layer for receiving and processing the pressure sensing signal from the piezoelectric sensing layer. And produce physiological monitoring information. The physiological monitor according to claim 2, wherein the signal processing unit comprises an amplifying unit, a filtering unit, a signal converting unit, a control unit, a transceiver unit, a power supply unit, and a grounding unit, and the power supply unit is powered Providing the amplification unit, the filtering unit, the signal conversion unit, the control unit, and the transceiver unit, the grounding unit filters out noise blocked by the shielding layer, and the amplifying unit receives and amplifies the pressure sensing signal. And after filtering the noise of the filtering unit and analog-to-digital conversion by the signal conversion unit, the control unit generates Generating a signal, which is then received by the transceiver unit to generate the physiological monitoring information in the form of a wired signal or a wireless signal, and transmitted to at least one remote processing unit, through which the physiological pulse signal can be stored or calculated or transmitted through the display. Display physiological pulse signals. The physiological monitor according to claim 3, wherein the signal processing unit further has a memory unit for storing the sensing result and transmitting the sensing result by wire or wirelessly. The physiological monitor according to claim 4, wherein the amplification unit, the filtering unit, the signal conversion unit, the control unit, the transceiver unit, and the memory unit in the signal processing unit utilize a separation circuit The component is implemented, or partially or entirely realized by an integrated circuit (IC). The physiological monitor according to claim 5, wherein the signal processing unit receives an instruction transmitted by an external control unit, and executes a corresponding function according to the instruction, the instruction includes at least a read instruction, and the signal The corresponding function of the processing unit for the read command is that the signal processing unit stores the sensing result stored by the memory unit to the remote processing unit, and the remote processing unit is used for further signal processing or display. Signal waveform. The physiological monitor according to claim 1, wherein the upper cover layer is an entity or is divided into a plurality of entities, or has a hole shape for accommodating the cover layer or the shielding layer below the layer. The curved cover layer or the upper cover layer includes a hard portion and a soft portion, and the soft portion is curved corresponding to the cover layer or the shielding layer located below the soft cover portion.